<%@page import="javax.naming.InitialContext"%>
<%@page import="javax.naming.Context"%>
<%@page import="javax.sql.DataSource"%>
<%@page import="java.sql.*"%>
<%@page import="java.sql.PreparedStatement"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<%
	  Context con = new InitialContext();
	  DataSource da = (DataSource)con.lookup("java:comp/env/jdbc/oracle");
	  Connection conn = da.getConnection();
	  ResultSet rs = conn.prepareStatement("select UIDS from b_user").executeQuery();
	  if(rs != null){
		  while(rs.next()){
			  out.print(rs.getInt(1));
		  }
	  }
	%>
</body>
</html>